Things to Know
1. Know all the signs.
2. Know how graph inequalities.
3. Know how to write an inequality for a graph.
On graphed inequality, an open dot means less than or greater than, but not equal to.
A closed dot means less than or equal to or greater than or equal to depending on the direction of the arrow.
If the arrow goes to the left, it means less than, and if it goes to the right it means greater than.
Things to Know
1. Know all the signs.
2. Know how graph inequalities.
3. Know how to write an inequality for a graph.
On graphed inequality, an open dot means less than or greater than, but not equal to.
A closed dot means less than or equal to or greater than or equal to depending on the direction of the arrow.
If the arrow goes to the left, it means less than, and if it goes to the right it means greater than.